A Frayed Stitch in Time Mod for Half-Life 2 Members

The combine have discovered a Time Machine in the vastness of space, built by a non combine alien race, the combine hope to turn it on and invade earth at an earlier period in history when modern weapons and Gordon Freeman doesn't exist. The Time Machine was built 100,000 years ago, so the combine can go back in time to a period sometime in that 100,000 years. The Time Machine was left partially on, and the Combine hope to get it running at full power. Gordon Freeman and Alyx get sent there durring the slow teleport from Nova Prospect to dr. kliner's lab, and you have to somehow stop the Combine from turning the machine on. The problem is that if the Time Machine goes to full power it pulls the sun towards the machine, the sun then enter's the time vortex surrounding the planet and then goes on a strange trip and does a lot of damage to the place where it goes, namely your Earth. There's a 2 minute cut-scene at the beginning where you can't do anything till you...